If freedom of speech is absolute, how come it's not applied for private spaces and for the Internet?

Insider trading

Revealing classified information

Freedom of speech does not apply to:

Common herbal supplement used to beat stress linked to liver toxicity - Times of India

That’s what it is. You have no right to use other people’s stuff. If people let you use their stuff, they can tell you how you can use it, and they can tell you to stop using it any time they want.

HIPAA violations

Trade secrets

“NASA’s Ambitious Venture Unveiled”: A Groundbreaking $488 Million Mission With a New Telescope Set to Revolutionize Space Data - Rude Baguette

False advertising

And much, much more.

No freedom is absolute.

With 2 petawatts, the powerful American ZEUS laser competes with particle accelerators. - Farmingdale Observer

Insurrection

You have freedom to travel. If I loan you my car, I can tell you not to take it out of town, because it’s mine, you have no right to use it, and if I give you permission to use it I can tell you what you can and can’t do with it.

Perjury

HHS justifies decision to stop recommending Covid shots during pregnancy with studies supporting the shots’ safety - Politico

If you’re wondering why free speech doesn’t apply to the internet, it’s because you have no right to use other people’s stuff for free.

Child pornography

Revenge porn

Enzo Maresca rues ‘six minutes that changed the game’ in failed experiment against Flamengo - We Ain't Got No History

Conspiracy

You have freedom of speech. If I loan you my computer, I can tell you not to use it for certain things, because it’s mine, you have no right to use it, and if I give you permission to use it I can tell you what you can and can’t do with it.

Fraud

New COVID variant swiftly gains ground in US; concern looms for summer wave - Ars Technica

Threats of violence

Terroristic threats